| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| GB/T 20441.5-2017 |
Electroacoustics—Measurement microphones—Part 5:Methods for pressure calibration of workingstandard microphones by comparison |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 20441.4-2006 |
Measurement microphones—Part 4: Specifications for working standard microphones |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG (电子) 12044-1995 |
Verification Regulation of 4221 Type High Sound Pressure Microphone Calibrator (Trial Implementation) |
 (USD) |
via email in
1 business day
|
VALID
|
|
| GB/T 14259-1993 |
Acoustics－Guide to STANDARDs on the measurement of airborne acoustical noise and evaluation of its effects on human beings |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 16403-1996 |
Acoustics—Audiometric test methods—Basic pure tone air and bone conduction threshold audiometry |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| GB 4854-1984 |
|
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| JJG 947-1999 |
Verification Regulation of Acoustic Tide Gauge |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 17248.1-2000 |
Acoustics--Noise emitted by machinery and equipment--Guidelines for the use of basic STANDARDs for the determination of emission sound pressure levels at a work station and at other specified positions |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJF 1136-2005 |
Calibration Specification of Tonometers |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 16296.1-2018 |
Acoustics—Audiometric test methods—Part 1:Pure-tone air and bone conduction audiometry |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| GB/T 25078.2-2010 |
Acoustics—Recommendedpracticeforthedesignoflow-noisemachineryand |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| JJF 1143-2006 |
Calibration Specification for Acoustic Performance of Reverberation Rooms |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG (轻工) 102-1993 |
|
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| JJG (交通) 027-2004 |
|
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| JJG (电子) 15022-1991 |
General Pulse Signal Generator (Trial Implementation) |
 (USD) |
via email in
1 business day
|
VALID
|
|
| GB/T 3785.3-2018 |
Electroacoustics—Sound level meters—Part 3:Periodic tests |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB 7342-1987 |
IEC provisional reference coupler for the calibration of earphones used in audiometry |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 17248.2-1999 |
Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Engineering method in an essentially free field over a reflecting plane |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| GB/T 31004.2-2014 |
Acoustics—Measurement of sound insulation in buildings and of building elements using sound intensity—Part 1:Laboratory measurements |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 25498.1-2010 |
Electroacoustics - Simulators of human head and ear - Part 1: Ear simulator for the calibration of supra-aural earphones |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
|
|
